1 // This issue tests fn_traits overloading on arity.
5 #![feature(unboxed_closures)]
9 impl Fn<(isize, isize)> for Foo {
10 extern "rust-call" fn call(&self, args: (isize, isize)) -> Self::Output {
11 println!("{:?}", args);
12 (args.0 + 1, args.1 + 1)
16 impl FnMut<(isize, isize)> for Foo {
17 extern "rust-call" fn call_mut(&mut self, args: (isize, isize)) -> Self::Output {
18 println!("{:?}", args);
19 (args.0 + 1, args.1 + 1)
23 impl FnOnce<(isize, isize)> for Foo {
24 type Output = (isize, isize);
25 extern "rust-call" fn call_once(self, args: (isize, isize)) -> Self::Output {
26 println!("{:?}", args);
27 (args.0 + 1, args.1 + 1)
31 impl Fn<(isize, isize, isize)> for Foo {
32 extern "rust-call" fn call(&self, args: (isize, isize, isize)) -> Self::Output {
33 println!("{:?}", args);
34 (args.0 + 3, args.1 + 3, args.2 + 3)
38 impl FnMut<(isize, isize, isize)> for Foo {
39 extern "rust-call" fn call_mut(&mut self, args: (isize, isize, isize)) -> Self::Output {
40 println!("{:?}", args);
41 (args.0 + 3, args.1 + 3, args.2 + 3)
44 impl FnOnce<(isize, isize, isize)> for Foo {
45 type Output = (isize, isize, isize);
46 extern "rust-call" fn call_once(self, args: (isize, isize, isize)) -> Self::Output {
47 println!("{:?}", args);
48 (args.0 + 3, args.1 + 3, args.2 + 3)
54 assert_eq!(foo(1, 1), (2, 2));
55 assert_eq!(foo(1, 1, 1), (4, 4, 4));